Canon's original L-series 14mm ultra-wide prime — rectilinear full-frame coverage at f/2.8.
The Canon EF 14mm f/2.8L USM launched in 1991 as Canon's widest rectilinear prime lens for the EF mount. At 14mm on full-frame it provides an extreme 114-degree field of view with minimal distortion — remarkable for such a wide focal length in the early 1990s.
Optically good for its era — sharp in the centre with noticeable softness in corners on full-frame. The L-series build is robust. Ring-type USM provides fast, silent autofocus with full-time manual override. Some barrel distortion at 14mm is inevitable but well-controlled.
Canon EF mount. Bulbous front element — no standard filter thread. Built-in fixed lens hood. Weighs approximately 560g. L-series red ring and weather-resistant construction. Minimum focus distance 25cm. Full-frame coverage. Rear gel filter holder.
Available used at mid-range prices. The Mark II from 2007 improved optics significantly — if buying used, the Mark II is much better value. Check for scratches on the bulbous front element. Useful for architecture and interiors but the Mark II is the one to buy.